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Musical instrument pickup based on a laser locked to an optical fiber resonator

  Articoli su Riviste JCR/ISI  (anno 2011)

Autori:  Avino S., Barnes J. A., Gagliardi G., Gu X., Gutstein D., Mester J. R., Nicholaou C., Loock H

Affiliazione Autori:  CNR Istituto Nazionale di Ottica, Via Campi Flegrei 80078 Pozzuoli (Napoli), Italy; Department of Chemistry, Queen’s University, Kingston, ON, K7L 3N6, Canada; Department of Electrical and Computer Engineering, Ryerson University, Toronto, ON, M5B 2K3, Canada

Riassunto:  A low-noise transducer based on a fiber Fabry-Perot (FFP) cavity was used as a pickup for an acoustic guitar. A distributed feedback (DFB) laser was locked to a 25 MHz-wide resonance of the FFP cavity using the Pound-Drever-Hall method. The correction signal was used as the audio output and was preamplified and sampled at up to 96 kHz. The pickup system is largely immune against optical noise sources, exhibits a flat frequency response from the infrasound region to about 25 kHz, and has a distortion-free audio output range of about 50 dB. (C) 2011 Optical Society of America

Rivista/Giornale:  OPTICS EXPRESS
Volume n.:  19 (25)      Pagine da: 25057  a: 25065
Ulteriori informazioni:  HPL, JM, CN, DG and JB thank the Canadian Institute for Photonic Innovations and PARTEQ Innovations for funding this work. JM and JB also thank Queen\'s University and the Natural Sciences and Engineering Research Council (NSERC) of Canada for financial support. SA thanks CNR-INO for supporting his visit at Queen\'s University. XG acknowledges support through an NSERC Discovery Grant. We also thank Steve Adolph (PARTEQ) for his advice on the electronic design, Peter Swanson (Dagmar Guitars) for building the guitar, Paul Langlois (guitar) and Wolfgang Rau (cello) for recording some of the music files as well as Lucas Agosta, and Ron Elbaz for assistance with the experiments.
DOI: 10.1364/OE.19.025057

*Impact Factor della Rivista: (2011) 3.587   *Citazioni: 19
data tratti da "WEB OF SCIENCE" (marchio registrato di Thomson Reuters) ed aggiornati a:  19/05/2019

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